scsi_base.c

MIPS处理器的bootloader,龙芯就是用的修改过的PMON2

	{ 0x11, 0x0C, "Uncorrected Read Error - Recommend Rewrite the Data" },
	{ 0x12, 0x00, "Address Mark Not Found for ID Field" },
	{ 0x13, 0x00, "Address Mark Not Found for Data Field" },
	{ 0x14, 0x00, "Recorded Entity Not Found" },
	{ 0x14, 0x01, "Record Not Found" },
	{ 0x14, 0x02, "Filemark or Setmark Not Found" },
	{ 0x14, 0x03, "End-Of-Data Not Found" },
	{ 0x14, 0x04, "Block Sequence Error" },
	{ 0x15, 0x00, "Random Positioning Error" },
	{ 0x15, 0x01, "Mechanical Positioning Error" },
	{ 0x15, 0x02, "Positioning Error Detected By Read of Medium" },
	{ 0x16, 0x00, "Data Synchronization Mark Error" },
	{ 0x17, 0x00, "Recovered Data With No Error Correction Applied" },
	{ 0x17, 0x01, "Recovered Data With Retries" },
	{ 0x17, 0x02, "Recovered Data With Positive Head Offset" },
	{ 0x17, 0x03, "Recovered Data With Negative Head Offset" },
	{ 0x17, 0x04, "Recovered Data With Retries and/or CIRC Applied" },
	{ 0x17, 0x05, "Recovered Data Using Previous Sector ID" },
	{ 0x17, 0x06, "Recovered Data Without ECC - Data Auto-Reallocated" },
	{ 0x17, 0x07, "Recovered Data Without ECC - Recommend Reassignment" },
	{ 0x17, 0x08, "Recovered Data Without ECC - Recommend Rewrite" },
	{ 0x18, 0x00, "Recovered Data With Error Correction Applied" },
	{ 0x18, 0x01, "Recovered Data With Error Correction & Retries Applied" },
	{ 0x18, 0x02, "Recovered Data - Data Auto-Reallocated" },
	{ 0x18, 0x03, "Recovered Data With CIRC" },
	{ 0x18, 0x04, "Recovered Data With LEC" },
	{ 0x18, 0x05, "Recovered Data - Recommend Reassignment" },
	{ 0x18, 0x06, "Recovered Data - Recommend Rewrite" },
	{ 0x19, 0x00, "Defect List Error" },
	{ 0x19, 0x01, "Defect List Not Available" },
	{ 0x19, 0x02, "Defect List Error in Primary List" },
	{ 0x19, 0x03, "Defect List Error in Grown List" },
	{ 0x1A, 0x00, "Parameter List Length Error" },
	{ 0x1B, 0x00, "Synchronous Data Transfer Error" },
	{ 0x1C, 0x00, "Defect List Not Found" },
	{ 0x1C, 0x01, "Primary Defect List Not Found" },
	{ 0x1C, 0x02, "Grown Defect List Not Found" },
	{ 0x1D, 0x00, "Miscompare During Verify Operation" },
	{ 0x1E, 0x00, "Recovered ID with ECC" },
	{ 0x20, 0x00, "Invalid Command Operation Code" },
	{ 0x21, 0x00, "Logical Block Address Out of Range" },
	{ 0x21, 0x01, "Invalid Element Address" },
	{ 0x22, 0x00, "Illegal Function (Should 20 00, 24 00, or 26 00)" },
	{ 0x24, 0x00, "Illegal Field in CDB" },
	{ 0x25, 0x00, "Logical Unit Not Supported" },
	{ 0x26, 0x00, "Invalid Field In Parameter List" },
	{ 0x26, 0x01, "Parameter Not Supported" },
	{ 0x26, 0x02, "Parameter Value Invalid" },
	{ 0x26, 0x03, "Threshold Parameters Not Supported" },
	{ 0x27, 0x00, "Write Protected" },
	{ 0x28, 0x00, "Not Ready To Ready Transition (Medium May Have Changed)" },
	{ 0x28, 0x01, "Import Or Export Element Accessed" },
	{ 0x29, 0x00, "Power On, Reset, or Bus Device Reset Occurred" },
	{ 0x2A, 0x00, "Parameters Changed" },
	{ 0x2A, 0x01, "Mode Parameters Changed" },
	{ 0x2A, 0x02, "Log Parameters Changed" },
	{ 0x2B, 0x00, "Copy Cannot Execute Since Host Cannot Disconnect" },
	{ 0x2C, 0x00, "Command Sequence Error" },
	{ 0x2C, 0x01, "Too Many Windows Specified" },
	{ 0x2C, 0x02, "Invalid Combination of Windows Specified" },
	{ 0x2D, 0x00, "Overwrite Error On Update In Place" },
	{ 0x2F, 0x00, "Commands Cleared By Another Initiator" },
	{ 0x30, 0x00, "Incompatible Medium Installed" },
	{ 0x30, 0x01, "Cannot Read Medium - Unknown Format" },
	{ 0x30, 0x02, "Cannot Read Medium - Incompatible Format" },
	{ 0x30, 0x03, "Cleaning Cartridge Installed" },
	{ 0x31, 0x00, "Medium Format Corrupted" },
	{ 0x31, 0x01, "Format Command Failed" },
	{ 0x32, 0x00, "No Defect Spare Location Available" },
	{ 0x32, 0x01, "Defect List Update Failure" },
	{ 0x33, 0x00, "Tape Length Error" },
	{ 0x36, 0x00, "Ribbon, Ink, or Toner Failure" },
	{ 0x37, 0x00, "Rounded Parameter" },
	{ 0x39, 0x00, "Saving Parameters Not Supported" },
	{ 0x3A, 0x00, "Medium Not Present" },
	{ 0x3B, 0x00, "Positioning Error" },
	{ 0x3B, 0x01, "Tape Position Error At Beginning-of-Medium" },
	{ 0x3B, 0x02, "Tape Position Error At End-of-Medium" },
	{ 0x3B, 0x03, "Tape or Electronic Vertical Forms Unit Not Ready" },
	{ 0x3B, 0x04, "Slew Failure" },
	{ 0x3B, 0x05, "Paper Jam" },
	{ 0x3B, 0x06, "Failed To Sense Top-Of-Form" },
	{ 0x3B, 0x07, "Failed To Sense Bottom-Of-Form" },
	{ 0x3B, 0x08, "Reposition Error" },
	{ 0x3B, 0x09, "Read Past End Of Medium" },
	{ 0x3B, 0x0A, "Read Past Begining Of Medium" },
	{ 0x3B, 0x0B, "Position Past End Of Medium" },
	{ 0x3B, 0x0C, "Position Past Beginning Of Medium" },
	{ 0x3B, 0x0D, "Medium Destination Element Full" },
	{ 0x3B, 0x0E, "Medium Source Element Empty" },
	{ 0x3D, 0x00, "Invalid Bits In IDENTFY Message" },
	{ 0x3E, 0x00, "Logical Unit Has Not Self-Configured Yet" },
	{ 0x3F, 0x00, "Target Operating Conditions Have Changed" },
	{ 0x3F, 0x01, "Microcode Has Changed" },
	{ 0x3F, 0x02, "Changed Operating Definition" },
	{ 0x3F, 0x03, "INQUIRY Data Has Changed" },
	{ 0x40, 0x00, "RAM FAILURE (Should Use 40 NN)" },
	{ 0x41, 0x00, "Data Path FAILURE (Should Use 40 NN)" },
	{ 0x42, 0x00, "Power-On or Self-Test FAILURE (Should Use 40 NN)" },
	{ 0x43, 0x00, "Message Error" },
	{ 0x44, 0x00, "Internal Target Failure" },
	{ 0x45, 0x00, "Select Or Reselect Failure" },
	{ 0x46, 0x00, "Unsuccessful Soft Reset" },
	{ 0x47, 0x00, "SCSI Parity Error" },
	{ 0x48, 0x00, "INITIATOR DETECTED ERROR Message Received" },
	{ 0x49, 0x00, "Invalid Message Error" },
	{ 0x4A, 0x00, "Command Phase Error" },
	{ 0x4B, 0x00, "Data Phase Error" },
	{ 0x4C, 0x00, "Logical Unit Failed Self-Configuration" },
	{ 0x4E, 0x00, "Overlapped Commands Attempted" },
	{ 0x50, 0x00, "Write Append Error" },
	{ 0x50, 0x01, "Write Append Position Error" },
	{ 0x50, 0x02, "Position Error Related To Timing" },
	{ 0x51, 0x00, "Erase Failure" },
	{ 0x52, 0x00, "Cartridge Fault" },
	{ 0x53, 0x00, "Media Load or Eject Failed" },
	{ 0x53, 0x01, "Unload Tape Failure" },
	{ 0x53, 0x02, "Medium Removal Prevented" },
	{ 0x54, 0x00, "SCSI To Host System Interface Failure" },
	{ 0x55, 0x00, "System Resource Failure" },
	{ 0x57, 0x00, "Unable To Recover Table-Of-Contents" },
	{ 0x58, 0x00, "Generation Does Not Exist" },
	{ 0x59, 0x00, "Updated Block Read" },
	{ 0x5A, 0x00, "Operator Request or State Change Input (Unspecified)" },
	{ 0x5A, 0x01, "Operator Medium Removal Requested" },
	{ 0x5A, 0x02, "Operator Selected Write Protect" },
	{ 0x5A, 0x03, "Operator Selected Write Permit" },
	{ 0x5B, 0x00, "Log Exception" },
	{ 0x5B, 0x01, "Threshold Condition Met" },
	{ 0x5B, 0x02, "Log Counter At Maximum" },
	{ 0x5B, 0x03, "Log List Codes Exhausted" },
	{ 0x5C, 0x00, "RPL Status Change" },
	{ 0x5C, 0x01, "Spindles Synchronized" },
	{ 0x5C, 0x02, "Spindles Not Synchronized" },
	{ 0x60, 0x00, "Lamp Failure" },
	{ 0x61, 0x00, "Video Acquisition Error" },
	{ 0x61, 0x01, "Unable To Acquire Video" },
	{ 0x61, 0x02, "Out Of Focus" },
	{ 0x62, 0x00, "Scan Head Positioning Error" },
	{ 0x63, 0x00, "End Of User Area Encountered On This Track" },
	{ 0x64, 0x00, "Illegal Mode For This Track" },
	{ 0x00, 0x00, NULL }
};

static __inline void
asc2ascii(asc, ascq, result)
	u_char asc, ascq;
	char *result;
{
	register int i = 0;

	while (adesc[i].description != NULL) {
		if (adesc[i].asc == asc && adesc[i].ascq == ascq)
			break;
		i++;
	}
	if (adesc[i].description == NULL) {
		if (asc == 0x40 && ascq != 0) {
			(void) sprintf(result,
			    "Diagnostic Failure on Component 0x%02x",
			    ascq & 0xff);
		} else {
			(void) sprintf(result, "ASC 0x%02x ASCQ 0x%02x",
			    asc & 0xff, ascq & 0xff);
		}
	} else {
		(void) strcpy(result, adesc[i].description);
	}
}

#else

static __inline void
asc2ascii(asc, ascq, result)
	u_char asc, ascq;
	char *result;
{
	(void) sprintf(result, "ASC 0x%02x ASCQ 0x%02x", asc & 0xff,
	    ascq & 0xff);
}
#endif /* SCSITERSE */

void
scsi_print_sense(xs, verbosity)
	struct scsi_xfer *xs;
	int verbosity;
{
	int32_t info;
	register int i, j, k;
	char *sbs, *s;

	sc_print_addr(xs->sc_link);
	s = (char *) &xs->sense;
	printf("Check Condition on opcode 0x%x\n", xs->cmd->opcode);

	/*
	 * Basics- print out SENSE KEY
	 */
	printf("    SENSE KEY: %s\n", scsi_decode_sense(s, 0));

	/*
 	 * Print out, unqualified but aligned, FMK, EOM and ILI status.
	 */
	if (s[2] & 0xe0) {
		char pad = ' ';

		printf("             ");
		if (s[2] & SSD_FILEMARK) {
			printf("%c Filemark Detected", pad);
			pad = ',';
		}
		if (s[2] & SSD_EOM) {
			printf("%c EOM Detected", pad);
			pad = ',';
		}
		if (s[2] & SSD_ILI)
			printf("%c Incorrect Length Indicator Set", pad);
		printf("\n");
	}
	/*
	 * Now we should figure out, based upon device type, how
	 * to format the information field. Unfortunately, that's
	 * not convenient here, so we'll print it as a signed
	 * 32 bit integer.
	 */
	info = _4btol(&s[3]);
	if (info)
		printf("   INFO FIELD: %u\n", info);

	/*
	 * Now we check additional length to see whether there is
	 * more information to extract.
	 */

	/* enough for command specific information? */
	if (s[7] < 4)
		return;
	info = _4btol(&s[8]);
	if (info)
		printf(" COMMAND INFO: %d (0x%x)\n", info, info);

	/*
	 * Decode ASC && ASCQ info, plus FRU, plus the rest...
	 */

	sbs = scsi_decode_sense(s, 1);
	if (sbs)
		printf("     ASC/ASCQ: %s\n", sbs);
	if (s[14] != 0)
		printf("     FRU CODE: 0x%x\n", s[14] & 0xff);
	sbs = scsi_decode_sense(s, 3);
	if (sbs)
		printf("         SKSV: %s\n", sbs);
	if (verbosity == 0)
		return;

	/*
	 * Now figure whether we should print any additional informtion.
	 *
	 * Where should we start from? If we had SKSV data,
	 * start from offset 18, else from offset 15.
	 *
	 * From that point until the end of the buffer, check for any
	 * nonzero data. If we have some, go back and print the lot,
	 * otherwise we're done.
	 */
	if (sbs)
		i = 18;
	else
		i = 15;

	for (j = i; j < sizeof (xs->sense); j++)
		if (s[j])
			break;
	if (j == sizeof (xs->sense))
		return;

	printf(" Additional Sense Information (byte %d out...):\n", i);
	if (i == 15) {
		printf("        %2d:", i);
		k = 7;
	} else {
		printf("        %2d:", i);
		k = 2;
		j -= 2;
	}
	while (j > 0) {
		if (i >= sizeof (xs->sense))
			break;
		if (k == 8) {
			k = 0;
			printf("\n        %2d:", i);
		}
		printf(" 0x%02x", s[i] & 0xff);
		k++;
		j--;
		i++;
	}
	printf("\n");
}

char *
scsi_decode_sense(sinfo, flag)
	void *sinfo;
	int flag;
{
	u_char *snsbuf, skey;
	static char rqsbuf[132];

	skey = 0;

	snsbuf = (u_char *) sinfo;
	if (flag == 0 || flag == 2 || flag == 3) {
		skey = snsbuf[2] & 0xf;
	}
	if (flag == 0) {		/* Sense Key Only */
		(void) strcpy(rqsbuf, sense_keys[skey]);
		return (rqsbuf);
	} else if (flag == 1) {		/* ASC/ASCQ Only */
		asc2ascii(snsbuf[12], snsbuf[13], rqsbuf);
		return (rqsbuf);
	} else  if (flag == 2) {	/* Sense Key && ASC/ASCQ */
		asc2ascii(snsbuf[12], snsbuf[13],
		    rqsbuf + sprintf(rqsbuf, "%s, ", sense_keys[skey]));
		return (rqsbuf);
	} else if (flag == 3  && snsbuf[7] >= 9 && (snsbuf[15] & 0x80)) {
		/*
		 * SKSV Data
		 */
		switch (skey) {
		case 0x5:	/* Illegal Request */
			if (snsbuf[15] & 0x8) {
				(void) sprintf(rqsbuf,
				    "Error in %s, Offset %d, bit %d",
				    (snsbuf[15] & 0x40)? "CDB" : "Parameters",
				    (snsbuf[16] & 0xff) << 8 |
				    (snsbuf[17] & 0xff), snsbuf[15] & 0xf);
			} else {
				(void) sprintf(rqsbuf,
				    "Error in %s, Offset %d",
				    (snsbuf[15] & 0x40)? "CDB" : "Parameters",
				    (snsbuf[16] & 0xff) << 8 |
				    (snsbuf[17] & 0xff));
			}
			return (rqsbuf);
		case 0x1:
		case 0x3:
		case 0x4:
			(void) sprintf(rqsbuf, "Actual Retry Count: %d",
			    (snsbuf[16] & 0xff) << 8 | (snsbuf[17] & 0xff));
			return (rqsbuf);
		case 0x2:
			(void) sprintf(rqsbuf, "Progress Indicator: %d",
			    (snsbuf[16] & 0xff) << 8 | (snsbuf[17] & 0xff));
			return (rqsbuf);
		default:
			break;
		}
	}
	return (NULL);
}

#ifdef	SCSIDEBUG
/*
 * Given a scsi_xfer, dump the request, in all it's glory
 */
void
show_scsi_xs(xs)
	struct scsi_xfer *xs;
{
	printf("xs(%p): ", xs);
	printf("flg(0x%x)", xs->flags);
	printf("sc_link(%p)", xs->sc_link);
	printf("retr(0x%x)", xs->retries);
	printf("timo(0x%x)", xs->timeout);
	printf("cmd(%p)", xs->cmd);
	printf("len(0x%x)", xs->cmdlen);
	printf("data(%p)", xs->data);
	printf("len(0x%x)", xs->datalen);
	printf("res(0x%x)", xs->resid);
	printf("err(0x%x)", xs->error);
	printf("bp(%p)", xs->bp);
	show_scsi_cmd(xs);
}

void
show_scsi_cmd(xs)
	struct scsi_xfer *xs;
{
	u_char *b = (u_char *) xs->cmd;
	int     i = 0;

	sc_print_addr(xs->sc_link);
	printf("command: ");

	if ((xs->flags & SCSI_RESET) == 0) {
		while (i < xs->cmdlen) {
			if (i)
				printf(",");
			printf("%x", b[i++]);
		}
		printf("-[%d bytes]\n", xs->datalen);
		if (xs->datalen)
			show_mem(xs->data, min(64, xs->datalen));
	} else
		printf("-RESET-\n");
}

void
show_mem(address, num)
	u_char *address;
	int num;
{
	int x;

	printf("------------------------------");
	for (x = 0; x < num; x++) {
		if ((x % 16) == 0)
			printf("\n%03d: ", x);
		printf("%02x ", *address++);
	}
	printf("\n------------------------------\n");
}
#endif /* SCSIDEBUG */